Yveltal @ Assault Vest  
Ability: Dark Aura  
EVs: 252 HP / 56 Atk / 196 SpA / 4 SpD  
- Sucker Punch  
- Dark Pulse  
- U-turn  
- Oblivion Wing  

Dialga @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Earth Power  
- Flash Cannon  
- Stealth Rock  

Mewtwo @ Life Orb  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Focus Blast  
- Ice Beam  
- Calm Mind  

Marshadow @ Spooky Plate  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Shadow Sneak  
- Spectral Thief  
- Drain Punch  
- Sucker Punch  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Precipice Blades  
- Fire Punch  
- Thunder Wave  
- Stealth Rock  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Scald  
- Ice Beam  
- Rest  
- Sleep Talk